干旱区生态环境知识资源中心(Arid): 山西暖性草地碳密度分布特征及其区域差异

Arid

	山西暖性草地碳密度分布特征及其区域差异
其他题名	Distribution Characteristics of Carbon Density in Warm-temperate Grassland and its Regional Difference in Shanxi
	邢鹏飞; 李刚; 赵祥; 董宽虎
来源期刊	草地学报
ISSN	1007-0435
出版年	2019
卷号	27 期号:6 页码:1667-1676
中文摘要	山西省草地是我国草地碳储量精确估测中不可忽视的部分。为探究山西省暖性草地生态系统碳密度的区域差异,本研究调查和测定了该省2个气候区(晋东南半湿润区,晋西北半干旱区)暖性草地群落特征和生态系统碳密度。结果表明:不同气候区的环境差异影响了草地植物物种多样性、生物量积累和土壤碳输入,造成2个气候区碳密度分异的主要环境因子为降水量和土壤有机碳含量;晋西北平均植物多样性指数略高于晋东南;晋西北和晋东南平均地上生物量分别为384.28 g·m~(-2),522.83 g·m~(-2),平均地下生物量分别为1 411.02 g·m~(-2),1 643.81 g·m~(-2),晋西北均低于晋东南;平均生态系统碳密度分别为7 911.48 g·m~(-2),9 080.43 g·m~(-2);其中植被地上部分、根系和土壤碳密度占比分别为1.4%~2.1%,12.3%~24.7%,73.6%~85.9%;晋东南地区暖性灌草丛类草地生态系统碳密度最大,为10 102.23 g·m~(-2)。
英文摘要	Grassland in Shanxi Province is an important part in the accurate estimation of grassland carbon reserves in China.By investigating and measuring the community characteristics and carbon density of warm-temperate grassland in two climatic regions of Shanxi(including the semi-arid area in northwest Shanxi and the semi-humid area in southeast Shanxi),the regional differences of ecosystem carbon density of warm-temperate grassland in Shanxi were analyzed.The results showed that the environmental differences in different climatic regions affected the diversity of grassland plants,biomass accumulation and soil carbon input,and the main environmental factors causing the difference of carbon density in the two climatic regions were precipitation and soil organic carbon content.The average plant diversity index of northwest Shanxi was slightly higher than that in southeast Shanxi.The average aboveground biomass of northwest and southeast regions were 384.28 g·m~(-2) and 522.83 g·m~(-2),respectively,and the average belowground biomass were 1 411.02 g·m~(-2) and 1643.81 g·m~(-2),respectively,both of which were lower in the region of northwest than that in southeast Shanxi.The average carbon densities of ecosystems were 7 911.48 g·m~(-2) and 9 080.43 g·m~(-2) in northwest and southeast regions,respectively.The proportions of vegetation,root system and soil carbon density were 1.4%~2.1%,12.3%~24.7%and 73.6%~85.9%, respectively.The carbon density of the warm temperate shrub-tussock ecosystem in southeast Shanxi was the highest,at 10 102.23 g·m~(-2).
中文关键词	山西省暖性草地 ; 碳密度 ; 区域差异
英文关键词	Warm-temperate grassland Carbon density Regional difference
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6633564
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315944
作者单位	山西农业大学动物科技学院, 太谷, 山西 030801, 中国
推荐引用方式 GB/T 7714	邢鹏飞,李刚,赵祥,等. 山西暖性草地碳密度分布特征及其区域差异[J],2019,27(6):1667-1676.
APA	邢鹏飞,李刚,赵祥,&董宽虎.(2019).山西暖性草地碳密度分布特征及其区域差异.草地学报,27(6),1667-1676.
MLA	邢鹏飞,et al."山西暖性草地碳密度分布特征及其区域差异".草地学报 27.6(2019):1667-1676.